Yes if your item costs $5 and you sell for $10 and postage is $7.20

Currently

FVF $0.99, Listing $1.50, Paypal $0.71  Total $3.20  Profit $1.80
New
FVF $1.70, Listing $1.50, Paypal $0.71  Total $3.91  Profit $1.09  A 40% decrease

To get back to your $1.80 profit  you must increase your selling price to $10.81

FVF $1.78, Listing $1.50, Paypal $0.73  Total $4.01  Profit $1.80

So to  maintain your profit margin with 0% change

eBay make an extra 31.7% in Listing and FVFs
Paypal make an extra 2.8% in fees

and the poor old buyer pays an extra 8%

But its all for the good of Buyers and Sellers. Yeah!